- Being and Time by Martin Heidegger
- Thus Spoke Zarathustra by Friedrich Nietzsche
- The Over-Soul by Ralph Waldo Emerson
- Self-Reliance by Ralph Waldo Emerson
- Divinity School Address by Ralph Waldo Emerson
- The Question Concerning Technology by Martin Heidegger
- Man’s Search for Meaning by Viktor E. Frankl
- Brain Rules by John Medina
